Bảng điều khiển
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Biến | Bể bộ đệm | Trạng thái InnoDB ]
===================================== 2026-07-12 18:25:48 0x7a71a25696c0 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 45 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 10110 srv_active, 0 srv_shutdown, 3135855 srv_idle srv_master_thread log flush and writes: 3145875 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 515578 OS WAIT ARRAY INFO: signal count 109033 RW-shared spins 4883, rounds 109858, OS waits 3063 RW-excl spins 2634, rounds 25557, OS waits 226 RW-sx spins 475, rounds 7180, OS waits 56 Spin rounds per wait: 22.50 RW-shared, 9.70 RW-excl, 15.12 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 1054844 Purge done for trx's n:o < 1054827 undo n:o < 0 state: running but idle History list length 0 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 416103202616040, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 416103202611824, ACTIVE 0 sec starting index read mysql tables in use 1, locked 0 0 lock struct(s), heap size 1128, 0 row lock(s) MySQL thread id 32081, OS thread handle 134628224956096, query id 2243694 localhost 127.0.0.1 pma Statistics SELECT `tables` FROM `phpmyadmin`.`pma__favorite` WHERE `username` = 'root' ---TRANSACTION 416103202607608, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 416103202594960, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 416103202603392, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 416103202599176, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: waiting for i/o request (insert buffer thread) I/O thread 1 state: waiting for i/o request (log thread) I/O thread 2 state: waiting for i/o request (read thread) I/O thread 3 state: waiting for i/o request (read thread) I/O thread 4 state: waiting for i/o request (read thread) I/O thread 5 state: waiting for i/o request (read thread) I/O thread 6 state: waiting for i/o request (write thread) I/O thread 7 state: waiting for i/o request (write thread) I/O thread 8 state: waiting for i/o request (write thread) I/O thread 9 state: waiting for i/o request (write thread) Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] , ibuf aio reads:, log i/o's:, sync i/o's: Pending flushes (fsync) log: 0; buffer pool: 0 464121 OS file reads, 149162 OS file writes, 75784 OS fsyncs 0.67 reads/s, 16384 avg bytes/read, 3.89 writes/s, 2.22 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 0, seg size 2, 1101 merges merged operations: insert 1550, delete mark 1167, delete 677 discarded operations: insert 0, delete mark 0, delete 0 Hash table size 4441, node heap has 2 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 10.91 hash searches/s, 12.73 non-hash searches/s --- LOG --- Log sequence number 966275030 Log flushed up to 966274835 Pages flushed up to 966273669 Last checkpoint at 966269330 0 pending log flushes, 0 pending chkp writes 38671 log i/o's done, 1.04 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 258640 Buffer pool size 1003 Free buffers 738 Database pages 256 Old database pages 0 Modified db pages 9 Percent of dirty pages(LRU & free pages): 0.905 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 22218, not young 328500 0.00 youngs/s, 0.00 non-youngs/s Pages read 464011, created 1714, written 97289 0.67 reads/s, 0.04 creates/s, 2.42 writes/s Buffer pool hit rate 989 / 1000, young-making rate 0 / 1000 not 0 / 1000 Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 256, unzip_LRU len: 0 I/O sum[139]:cur[0], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=4113, Main thread ID=134627561830080, state: sleeping Number of rows inserted 2331, updated 16192, deleted 6748, read 4647312 0.00 inserts/s, 0.53 updates/s, 0.00 deletes/s, 5.02 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 84315 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================